Radio control device



April 13, 1937. C LANGLEY 2,076,900

RADIO CONTROL DEVICE Filed Oct. 17, 1932 5 Sheets-Sheet l A frog/vexApril 13, 1937. c LANGLEY 2,076,900

RADIO CONTROL DEVICE Filed Oct. 17, 1932 5 Sheets-Sheet 2 [/v v/v TORCar/ /7 Lang/Q30,

C. H. LANGLEY RADIO CONTROL DEVICE April 13, 1937.

Filed Oct. 17, 1932 5 Sheets-Sheet 3 jig Z71]: 6O

Car/HA, 65/, W M

April 1937- c. H. LANGLEY 2,076,900

RADIO CONTROL DEVICE Filed Oct. 1'7, 1932 5 Sheets-Sheet 4 ATTORNXPatented 13,1931

UNITED STATES RADIO CONTROL DEVICE Carl H. Langley, Los Angeles, Calif.,assignor of forty-five per cent to Phillip K. Wlseman, Los

Angeles, Calif.

Application October 17,

14 Claims.

My invention relates to a device for controlling the tuning mechanism ofa radio set, such device being adapted to automatically change theadjusting or tuning of the radio at prescribed 5 times so thatpre-selected radio programs will be reproduced.

At the present time' radio receiving sets are provided with one or moreknobs whereby the tuning elements-thereof may be adjusted for the mreception of different .wave lengths, thereby making it possible toreceive or reproduce programs from any one of a large number of radiobroadcasting stations. K

It is an object of my invention to provide a 1:, device which may bepre-set so as to automatically produce a change in the adjustment of thetuning elements of the radio set at a prescribed time in the future toreceive a selected broadcast wave and thereby reproduce the program of aselected station. The device is provided with a clock mechanism and arecord member, or a plurality thereof, adapted to be pre-set orpre-adjusted to cover a future period of time, the timing means beingassociated with 25 mechanism whereby the tuning element of a radioreceiving set is readjusted in accordance with the manner in which therecord or records have been pre-set. For example, radio programs aregenerally divided into minimum 30 periods of time of fifteen minuteseach, such periods starting on the four quarter divisions of each hour.

In the preferred practice of my invention I may provide a plurality ofrecords, each representing a day of twenty-four hours divided intofifteen minute periods. In a simple manner this record may be pre-set oradjusted for each fifteen minute period, and as the record or controlmeans is moved in fifteen minute intervals relative to the operatingmechanism of my device, the record will control the operation of themechanism in such a manner that the tuning element of the radio will bereadjusted to tune the receiving set for the wave length, or radiostation, indicated by the pre-setting or pre-adjustment of the record.Therefore by the use of my invention the radio receiving set may beautomatically tuned or retuned at the beginning of each fifteen minuteperiod throughout a number of days corresponding to the number of dailyrecords in place in the controlling device.

It is an object of my invention to provide in a device of the abovecharacter a means for 55 turning the tuning element shaft. or the tuning1932, Serial No. 638,188

dial, of a radio receiving set to a. desired position, such means beingcapable of turning the dial either clockwise or counter-clockwise inaccordance with the direction of rotation necessary to bring the dialinto the predetermined position controlled by the setting of the record;and it is a further object to provide a means of this character whichwill adjust the tuning shaft or dial to relatively small divisions. Forexample, it is customary to divide the scale of the dial into onehundred units of movement or rotatlon of the tuning element whichordinarily is of condenser character. In my improved device the dial maybe at a prescribed time in the future automatically rotated to any oneof the unit divisions of the scale. I

It is a further object of the invention to pro-- vide a device of theforegoing character which may be employed to automatically control thesetting of a tuning unit of a radio but which may be manuallydisconnected at any desired time so that the radio may be manuallytuned, but which device may be caused to automatically reassume itsfunction of automatically controlling at the end of a certain program orat some future time controlled by the records employed in the invention.

A further object of the invention is to provide a device of the abovecharacter in which the controlling records are moved at intervals acrossa prescribed position, and in which means are provided for holding therecords in reserve and to move them in consecutive order relative to theoperating mechanism, with the result that a continuous control of theradio receiving set may be accomplished through a period of timeconsisting of a number of days.

Further objects and advantages of the invention will be brought out inthe following part of the specification.

Referring to the drawings, which are for illustrative purposes only,

Fig. l is a partly sectioned plan view of a. preferred embodiment of myinvention.

Fig. 2 is a cross sectional view taken substantially as indicated by theline 2--2 of Fig. 1.

Fig. 3 is a cross section on the plane represented by the line of Fi 1.

Fig. 4 is a fragmentary cross sectional view similar to the upperportion of Fig. 2, showing one stage of the operation of the device.

Fig. 5 is a view similar to Fig. 4, showing other cooperating positionsof the parts of the mechanism.

Fig. 6 is an enlarged fragmentary elevational 75 'of' the levers 2| and22 in lowered position Fig. 10 is a section similar to Fig. 9 showingthe record after asection thereof has been adjusted.

Fig. 11 is a fragmentary section on the plane represented by the line of.Fig. 2'.

v Fig. 12 is an enlarged section taken as indicated by the line |2|2 ofFig. 1.

Fig. 13 is a section similar to Fig. 12, showing the latch mechanism ofFig. 12 in position of engagement.

Fig. 14 is'a wiring diagram for the electrical elements of the precedingillustrations.

Fig. 15 is a fragmentary elevational view looking at the leftward 'endsof the levers of the device as indicated by the arrow l2 of Fig. 1. InFig. 1 I show a housing or casing |2 preferabLv having parallel verticalside walls l2 and II. By use of bearing members i2 a horizontal shaft 22is supported between the sidewalls 2 and I1. Supported on thishorizontal shaft are a plurality of primary levers 2| and a plurality ofsecondary levers 22, the leftward ends of which are pulled horizontallyupward by springs 22 connected to lugs 24 which extend leftwardly from ahorizontal supporting structure 22 which has .3 its ends secured bymeans such as rivets .22 to the side walls l2 and ll of the casing l2.

There are ten of the primary levers 2| an nine of the secondary levers22, as clearly shown in Fig. 1. The rightward ends of the primary levers2|, as shown in Fig. 7, have downwardly projecting brush members 21having semispherical lower ends 22 and upwardly projecting stemportions. 22 which extend into vertical openings 2| formed in the endsof the levers 2| and being adapted to engage stationary contact blocks22 to which conductors 22 may be secured.

As shown in Fig. 3, the rightward ends of the secondary levers 22 areprovided with brush or contact members 24 which have relatively slenderpoints 22, the upper ends of which members 24 are adapted to engagestationary contact blocks 22 to. which conductors 21 may be secured.Rightwardly .of the shaft 22 a shaft 22 is extended horizontally betweenbearing members '42 carried by the side walls "and i1. As shown in Figs.1 and 3, the portion of the shaft 22 adjacent the rightward ends of thesecondary levers 22 has an upwardly extending blade or pawl 4| adaptedto engage rightwardly extending dogs or catches 42 on the ends-of thesecondary levers 22 to hold the levers [22 in raised position as shownin Fig. 3 until theproper time for release thereof. Extending leftwardlyfrom the shaft 22 are arms 42 which support a horizontal bar 44 over theleftward portions of the primary levers 2|.

As shown in Figs. 1 to 5, the horizontal supporting structure 22 hasvertical holes 42 aligned with the rearward or leftward portions of theprimary and secondary levers 2| and 22, and in 7 these vertical openingsare primary and secondary pins 42 and 41, each of which has an upper end48 of reduced diameter. The purpose of the pins 42 and 41 is to hold theleftward ends and - to maintain the rightward ends of the levers 2| and22 in raised position, as will be hereinafter explained. The holding,down of a pin 42 or 41 will prevent the leftward end of the lever 2| or22, with which it is associated, from being pulled upwardly by a spring22.

To hold all or a selected number of the pins '42 or 41 downwardly, Iprovide a control or record member 22 of suchv character that it willprovide one or more openings in the bottom thereof into which the upperreduced ends 42 of selected or predetermined pins 42 or 41 may upwardlyextend, thereby permitting such pins to move upwardly and in turn permitthe raising of the leftward ends of associated levers 2| and 22.

As shown in Figs. 2,8,9, 10, and 11, the record V 22 in its preferredform comprises a flat plate 2| the blocks 22 are of a length L shownequal to the spacing of the openings 22 and 22 'along the lines 24 or 22on which the openings are disposed, but 'the channels 22 and 21 are ofsuch lengththat spaces 22 may be left. at the ends of the channelsadjacent the-end block of each group of blocks 22 or so that by forcinga stylus or other slender member 2| an opening 22 or 22, the blocks 22may be forced apart to provide an opening 22 or 22 between adjacentblocks and under the opening 22 or 22 through whichthe slender member 2|has been passed as indicated in dotted lines 24 in Fig. 10.-

The openings 22 are nine in number and are numbered in units, orfrom-one to nine.- The openings 22 are eleven in number, ten of thembeing numbered by tensfrom zero to ninety, and

the-eleventh opening- 2 being indicated by the word Stop.

At the extreme ends of the channels 22v and 21 into co-engagement andeliminate any opening downwardly through 22 or 22 between the ends ofthe group of blocks in either channel 22 or 21.

The openings 22 and 22 are spaced along the lateral lines 24, 22, atdistances equal to the spac-' ing of the parts 41 and 42. Accordingly,when a record 22 is in a position such as indicated in Fig. 2 with acooperating pair of channels 22 and 2 1 aligned over the pins '42 and41, the openings 22 and 22 formed between blocks 22 as previouslydescribed will be in position to receive the upper ends 42 of therewithaligned pins so as to permit upward movement of such pins and upwardmove-- a rotating switch member 12 is mounted, such I switch memberhaving a radially extending contact 1| and a substantially circularinsulating both! 12. The shaft 28 has a driving lug 12 which projectsinto a segmental opening I4 in the member 12 for the purpose of rotatingthe member 12 in the direction of the arrow I2 by permitting a limitedforward movement of the member 18 on the shaft.

As shown in Figs. 4, 5, and 14, adjacent the member 18 is a stationaryswitch contact 16 which is connected through a conductor 11 with a rec0rd advancing motor 18, this motor being connected with a conductor 88which leads from source of electrical power .which may readily consistof a transformer 8|. A conductor 82 is employed to connect the member 18and its movable contact H with a second conductor 83- which extends fromthe transformer 8|. The motor 18 is adapted to rotate a pinion 84, whichin turn drives a gear 85 in clockwise direction as indicated by thearrow 86 of Fig. 2. The face of the gear,

85 has a cam 81 thereon which is substantially the flattened face 88 ofthe cam 81, but as the cam 81 is rotated in clockwise direction througha position indicated by dotted lines '93, the lever 98 is swungdownwardly to the position indicated in dotted lines 94. As the cam 81is further rotated in clockwise direction, a pin 95, which projectsforwardly therefrom, engages a lever 96 which is rotatably mounted on ahorizontal shaft 91. This lever 96 is accordingly swung into theposition indicated by dotted lines 98, and a pawl I88 thereon advances aratchet wheel I8I. The ratchet wheel I8I is non-rotatably secured to theshaft 91 so that rotation of the ratchet wheel I8I will produce rotationof the shaft 91 and sprocket or pulley means I82 which are mountedthereon, an external knob I83 being provided whereby the shaft 91 may bemanually rotated.

Over the pulley means I82 parallel belt means I84 and I85 are carried.These belt means pass over pulley means I86 carried by a horizontalshaft I81, the upper portions of each of the members I84 and I85 passingover flat plates I88 which are carried near the ends of the horizontalsupporting structure 25. The members I84 and I85 have outwardlyextending engagement members II8 adapted to engage openings III in thelower edge portions of the record 58 whereby to propel the record 58 inforward direction as indicated by the arrow 2 of Fig. 2.

Each rotation of the pin 95 will produce an advance of the ratchet wheelI8I through an angular distance equal to one tooth, and such rotation ofthe ratchet wheel will produce a belt movement through the distancerequired to move the record from one fifteen minute period to the nextfifteen minute period, or from one cooperating pair of channels 56 and51 to the adjacent, channels 56 and 51 in the bottom of the record 58.

Means are provided for holding the leftward ends of all of the primaryand secondarylevers 2| and 22 in lowered positions, thereby assuringthat all of the pins 46 and. 41 will be in lowered position during themovement of the record 58 by the record advancing means previouslydescribed.

For moving the leftward ends of the levers 2| and 22 against the upwardpull of the springs -23, I show vertical links II3 which are moveddownwardly in response to the downward movement of the lever 98 by thecam 81. Between the upper ends of the links I I3 -a bar I I4 isextended, this bar passing over the leftward ends of the levers 2| and22, with the result that with downward movement of the lever 98 there isproduced a downward movement of the bar II4 so as to move the leftwardends of all of the levers 2| and 22 downwardly.

In Fig. 4 the cam 81 and the pin 95, with their associated parts, areshown in their respective positions at the close of a record advancingmovement. As the pin 95 travels downwardly from the position in which itis'shown in Fig. 4, it releases'the lever 96 and moves into engagementwith the under side of a pin I28 which projects from the member 18 andlifts this pin I28 from the position in which it is shown in Fig. 4 intoits position of Fig. 5, thereby rotating the member 18 on the shaft 68and moving the contact H from engagement with the stationary contact16,thereby cutting oif the supply of electrical energy to the motor 18 soas to stop the cam 81 and its associated-parts in a position of rest,the lever 98 being permitted at this time to swing upwardly intoengagement with the fiat face 88 of the cam 81 and release the levers 2Iand 22 so-that they will be drawn by the force of the springs 23 againstthe lower ends of the pins 46 and 41.

If the blocks 58 in a channel 51 lying above the pins 46 have beenadjusted to provide a space or opening 63, the point 48 of the pin 46aligned with such space or opening 63 will move upwardly into such spaceor opening 83 and permit a lever 2|, such as specifically indicated at2| (1 in Fig. 2, to move downwardly from the raised position of Fig. 4,thereby bringing the brush or contact 28 at the rightward end of suchlever 2Ia into engagement with a segmental contact I2I mounted on a drumI22. 7

It will be noted that at this time the pawl 4| -holds the secondarylevers 22 in raised position so that the leftward ends thereof arelowered. As shown in Fig. 15, the leftward end of each lever 22 carriesa contact I23 adapted to engage stationary spring contact blades I24which are connected in-series. The spring contact members may besupported on an insulated bar I25 carried by a supporting structure I26.As clearly shown in Fig. 14, all of the conductors 33 connected with thestationary contact blocks32 at the forward ends of the levers 2| areconnected in multiple to a conductor I21 which connects to one end ofthe series of switch means I28 formed between contacts I23 and I24. Theother end 128 of this series of switch means is connected through aconductor I38 with the feed conductor 88. Accordingly, when the leverindicated specifically at 2Ia in Fig. 2 drops into engagement with asegment I2I, the brush 28 is lifted into engagement with its cooperatingcontact block 32, thereby electrically connecting the segment I2I' withthe feed conductor 88.

As shown in Fig. 2, a second segment I 3| is mounted on the drum I22 inalignment with the segment I2 I, but a space is provided between theadjacent ends of the segments I2I and I3I, this space being occupied bya body of insulating material I32 having a pocket I33 formed therein toreceive the spherical lower end of the brush contact 28 carried by thelever 2 la. The segment I2I is connected through a wire I34 with a ringI I35. and the segment I3I is connected througha wire I36 with a ringI31, both of these rings being mounted at the end of the drum I22 sothat brushes I48 and HI may be supported in positions to engage theirrespective rings I35 and I31.

' By the use of wires I42 and I43. the respective brushes I48 and I 4|are connected with -motors I44 and I45, and these motors are connectedthrough conductors I46 and I41 with the feed and the motor I45 willrotate the drum I22 in anti-clockwise direction.

As previously described, the dropping of the forward end of the lever2Ia. as shown in Fig. 2 has caused the contact 28 to engage the segmentI2 I. From Fig. 14 it will be perceived that at this time the clockwisemotor I44 will be energized by flow of current through the conductorI38, the switches I28, the conductor I21, the conductor 33 indicatedspecifically at 33a, the segment I2I, a conductor I34, the ring I35, thebrush I48, and the conductor I42. The operation of the mo tor I44 willcause the drum I22 to rotate in clockwise direction as viewed in Fig. 2,or rearwardly with relation to the tuning movement of the ,drum, andmove the insulator I32 toward the brush contact 28, so as to carry thedepression I33 into alignment with the contact 28, withthe result that,as shown in Fig. 5, the brush contact will drop into the depression I33,thereby allowing the forward end of the lever 2 Ia to swing downwardly.The corresponding upward movement of the leftward end of the lever 2Ialifts the bar 44 and swings the arms 43 upwardly, rotating the shaft 38in clockwise direction and moving the pawl H from its position ofengagement with the catches 42, as shown in Fig. 4, to a releasingposition as shown in Fig. 5. At this time the springs 23 connected tothe rearward ends of the levers 22 will pull upwardly on the rearwardends of the levers 22, forcing them against the pins 41. The opening 82formed between the blocks 58 of the record 58, as shown in Fig. 10, willpermit one of the pins 41 to move upwardly, namely, the sixth pinindicated specifically at 4111. Accordingly, the lever 22 indicated at22a may rotate inclockwise direction so as to move the brush contact 34into engagement with a segment I54 mounted on the drum I22 in alignmentwith the lever 22a, and raising the leftward end of the lever 22a so asto remove the contact member I23 at the leftward end thereof fromengagement with the spring contact member I24 cooperating therewith.This opens the series of switch means I28 in the circuit leading to theclockwise motor I44, thereby de-energizing the motor through theelectrical circuit which was originally closed by the dropping of theforward end of the lever member 2Ia. As shown in Fig. 14, the conductors3'I connect the brush contacts 34 through the conductor I38 with thepower feed circuit 88.

The segment I54 is connected through a wire I55 and a conductor I58 withthe ring I35 in turn connected to the motor I45. Accordingly, the

. anticlockwise motor I45 will be energized through '35 of the brushcontact 34 coincides with an approaching insulator body [58 in thesegment It will be noted that the insulator member I58 has a depressionor pocket I88 therein into which the point 35 may drop, therebypermitting the brush contact 34 to drop down from engagement with the'contact block 38, breaking the circuit to the motor I44, and stoppingthe drum at the point designated by the alignment of the pocket I88 withthe point 35.

From the foregoing description it will be noted that the drum, inresponse to engagement of the contact 28 of the lever 2Ia with thesegment I2I, was first moved through a major distance, after which itwas moved through a smaller distance in response to engagement of thecontact 34 of the lever 22a with thesegment I54. The drum may beconnected through any suitable means, such as a shaft extension I83,with the tuning element of a radio set which has a rotating movementequal to an arc of rotation defined by the ends I84 and I of thesegments I2I and I3I, Fig. 2. The space 83, Fig. 18, which permitted thelowering of the rightward end of the lever 2Ia was produced by insertingthe stylus member .8I through an opening 53 designated as 58 along thescale of 0 to in Fig. 8.

The pocket I33, Fig. 2, formed in the insulator body I32 between thesegments I2I and I3I is so positioned on the drum that the energizationof the motor I44, through engagement of the contact 28 with the segmentI2I, causes the drum to move to a position half-way between the ends I84and I85 .of the arc of rotation so as to cause the tuning element of theradio set to be moved to a position 50 on a radio tuning scale dividedinto one hundred parts. The space 82,

I Fig, 10, which permitted the upward movement of the pin 41a and thedownward movement of the rightward end of the lever 22a, is in aposition corresponding to the numeral 5 along the leftward edge of therecord 58 shown in Fig. 8. The pocket I 88 in the insulator body I58,Fig. 3, is in a position five points to the right of the radial plane AAof the pocket I33, with the result that the energization of the motorI44 through engagement of the brush contact 34- with the segment I54,has caused the drum to move the tuning element of the radio set anadditional five points beyond the 50 point or to a position at 55 on thetuning scale. Accordingly it will be seen that by inserting a stylusthrough the opening 53 opposite the position 58" designated at theleftward edge of the record 58 in Fig. 8, and through the opening 52adjacent the numeral 5, the automatic tuning device has been controlledby the record in such a manner' as to rotate the tuning element to theposition 55 on its scale at the beginning of a fifteen minute intervaldetermined by the clock 81.

If at the beginning of the series of operations previously described,the drum I22 should be in such a position that the contact 28 of thelever arm 2Ia drops into engagement with the segment I3I, energizationof the anti-clockwise motor I45 will result to turn the drum I22 inanticlockwise direction to bring the pocket I33 into engagement with thebrush contact 28, after which the energization of the clockwise motorthrough closing of the circuit by engagement of the brush contact 34,Fig. 3, with the segment I54, will further move the drum to rotate thetuning element of the radio set to the 55 position on its tuning scale.

The ten-levers 2I are representative of the ten major divisions of atuning scale from one to one hundred, each of these major divisionsconsisting of ten units, and the nine levers 22 are representative ofnine unit divisions which may be disposed between any of the majordivisions of the scale. Accordingly, each lever 2I is adapted tocooperate with segments similar to the segments I2I and I3I,specifically designated as seg such selected lever Will cause theclosing of a contact through either a segment I2Ia or a segment I3Ia tocause the movement of the drum into a position in accordance with theposition of the opening 53 relative to the scale zero to ninety on therecord 50.

The levers 22 cooperate with the openings 52 along the scale one to nineof the record 50, and each of the levers 22 cooperates with a segmentsimilar to the segment I54, which additional segments, shown in Figs. 1and 14, are designated by the numeral I54a. Each of these segments I54or I54a has ten of the insulator bodies I58 therein, and there are teninsulator bodies I32 and I32a-cooperating with the seg- 'ments I2I, I3I,I3Ia, and I'2Ia'. Each segment I54 or I54a therefore has an insulatorbody set slightly in advance of each insulator body I32 or I32a, theadvance of the insulator bodies I 54 and- I54a relative to the insulatorbodies I32 and I320. corresponding to the numerical position of thesegment I54 or I54a relative to the scale divisions one to nine. Forexample, in the explanation of the operation of the device, theinsulator body I 58, Fig. 3, was disposed six points or six units beyondthe plane A-A of the insulator body I32.

The segment I54 has nine other insulator bodies I58a, each of which isdisposed six points beyond a plane or position of an insulator body I32..I-herefore, should any one of the levers 2| be selected to producemovement of a corresponding insulator body I32 or I32a into the verticalplane 3-3 in which the contacts 28 are disposed, the

segment I54 will have a contact body I58 or I58a. disposed six pointstherebeyond, and each of the remaining segments I540.- will provideinsulator bodies I58a disposed beyond the position at which the drum hasstopped in accordance with the numerical value of the segments I54 or I54a. It is therefore possible by adjustment of the blocks 58 of therecord50 to automatically control the movement of the drum I22 into anyselected unit division between the points zero and one hundred, therebymaking it possible to pre-set the record 50 so that the radio set willbe adjusted to receive any desired wavelength at a prescribed time inthe future.

It will be noted that the record 50 is provided with adjacent rows ofopenings 52 and 53 throughout the length thereof on lateral lines 54 and55. These rows of holes are spaced apart distances corresponding to oneadvancing movement of the record by the advancing mechanism controlledby the clock, and accordingly=the rows of holes may be numbered forfifteen minute intervals as at I15 along one edge of the record, and therecords may be of any desired length, such as twenty-four hours.

The invention further comprehends the use of a plurality of records,indicated individually at 50a in'Fig. 2, which records may be stacked ina suitable guide or receiver I16 so that they will drop into positionfor engagement by projections IIO as each preceding record is carriedout from under the stack of records. Therefore, if the records are madeof such length that each will conperiods.

trol a twenty-four hour period, an entire week's program may be arrangedby use of a stack of seven records. By inserting the stylus through anyof the holes 53 aligned with the designation Stop, the mechanism may becontrolled to shut off the radio during one or more fifteen minute overthe row of Stop openings of the record, and the lower end thereof isadapted to control the movement of a switch lever I80 which extendsleftwardly from the shaft 20. On a pivot I8Ia switch member I82 isswingably mounted in such position that its rearward end I83 will beengaged by the leftward or rearward end I84 of the lever I80 when thepin I I8 is permitted to move upwardly by the record 50 so that thelever I80 may be swung into the dotted line position I85. The resultingswinging movement of the switch member I82 causes a knife switch I85 tobe opened, thereby breaking the radio feed circuit so that the radio setwill not play, but without interfering with the intermittent advancingof the record 50 as previously described.

The wiring diagram of Fig. 14 shows the switch I88 in a circuit I80adapted to connect the radio set with a 110-volt service wiring I9I, Amanual radio control switch I92 is shown in a position to bridge acrossthe switch I86 so that the radio set may be turned on manually shouldthe switch I86 be opened in response to a setting of the record 50,thereby making it possible to turn the radio set on at any time duringsuch periods as the setting of a record may maintain it in inoperativecondition. The record accordingly may be set to stop the radio set andmaintain it in an off condition through any desired period of time andto turn the set on and off at various times. The bar 44 has a projectingend which extends under the rightward portion I93 of the switch memberI82 which will operatcto close the switch I88 whenever a lever member His caused or permitted to rotate in clockwise direction as a result ofthe dropping of a brush contact 28 into a recess or pocket I33, therebyre-energizing the radio set whenever the blocks 58 of the record 50 arein position to produce an operation of the drum I 22.

The automatic tuning device may be rendered temporarily inoperative byuse of a knob I95 which is mounted on a shaft I96 extending through acase I91, Fig. 1. As shown in Fig. 12, this shaft I96 is normallyrotated by a spring I98 in anti-clockwise direction to bring aprojection 200 extending from a disc 20I mounted on the shaft I96against a stop 202. The shaft extends horizontally under the rightwardends of the levers 2i and 22- and has a cam 203 thereon, as

shown in Figs. 2 and 3, this cam havinga shoulbe desired to change thesetting of the drum and.

of the tuning dial of the radio set at any time, the knob I95 may berotated against the action of the spring I98 through an angle of 180 soas to lift the levers 2| and 22' from the possibility of theirengagement with the segments carried by the drum I22. The engagement ofthe shoulder or ratchet 204 with the notch 205 will prevent the cam fromrotating to its normal lowered position until the subsequent operationof the ca 8 A y, at the end of the fifteen minute period during whichthe cam 203 has been actuated, the lever 90will be forced A pin I'I8,Figs. 1 and 6, is positioneddownwardly, and the bar ill will raise therightward ends of the levers 2| and 22, thereby removing the notch 200from engagement with the shoulder 204, allowing the spring to rotate theshaft I00 and carry the cam 203 into lowered position.

The foregoing manner of manipulating the knob I makes it possible tochange the tuning of the radio set during a fifteen minute period butpermits the automatic tuning device to resume its control of the radiotuning element at the end of the fifteen minute period. Means are alsoprovided whereby the levers 2| and 22 may be held in a raised positionfor an indefinite period. Such means consists of a pawl 206 mountedwithin the case I91 and being adapted to engage a shoulder 201 carriedby the disc 20l. The pawl 206 is normally held in outward position by alight spring 200 which will permit movement of the pawl, by a manuallyoperable pin or plunger 2| 0, from the position in which it is shown inFig. 12 to the position of engagement with the shoulder 201, as shown inFig. 13. The force of the shoulder against thepawl 206 holds these partsin engagement against the pressure of the spring 200 until the knob I95is manually rotated in clockwise direction to disengage the shoulder 201from the pawl 206. Accordingly, the cam 20! may be latched' in raisedposition and may be subsequently released by merely turning the knob I95to disengage the catch formed by the pawl 200 and the shoulder 201.

The operation of the radio control devicewhen there is no record presentin position to cooperate with the pins 48 and 41 is prevented by a'latch consisting of a bar 2 pivoted at 2 I; having alaterally extendingarm 2 adapted to extend upwardly into the path of the record 50, andwhen the member 2 i2 is pulled leftwardly by a spring 2l0, the lower endof the member 2l2 engages the bar 44 so as to prevent upward movement ofthis bar 44 when no record is in operative position. The moving of therecord 00 into operative position as shown in Fig. 2 depresses theupwardly extending portion 2 and causes the member M2 to swing fromdotted line position to full line position of Fig. 2, thereby releasingthe bar 44 so that the leftward portions of the levers 2| may swingupwardly and so that upward movement of the extending end of the bar 44may close the switch I.

' Although I have herein shown and described my invention in simple andpractical form', it is that certain parts or elements there-.

of are representative of other parts, elements. or mechanisms which maybe employed in substantially the same manner to accomplish substantiallythe same results; therefore, it is to be understood that the inventionis not to be limited to the details disclosed herein but is to beaccorded the full scope of the following claims.

' I claim as my invention:

1. A device of the character described .for automatically adjusting amember'in accordance with a predetermined schedule, including: a recordhaving consecutive groups of adjustable parts thereon, there being meanswhereby said parts may be adjusted to positions representative oi'desired positions of said member to be adjusted; means for producing amovement ot said record to bring said groups of adjustable partsindividually into a plane of operation; and actuating means controlledby the group of said adjustable parts in said plane of operation formoving said -atively small block members member to the positionrepresented by said adjustable parts.

2. A device as record comprises a body having consecutive guides, andsaid adjustable partsconsist of relslidable in said guides.

3. A device as defined in claim 1 in which said record comprises abodyhaving consecutive guides, and said adjustable parts consist ofrelatively small block members slidable in said guides, there beingopenings in said body for guiding a stylus-like member into engagementwith said block members.

' 4. A device as defined in claim 1 in which said record comprises aflat body having parallel channels in the bottom thereof and saidadjustable parts comprise blocks slidably disposed in said channels,there being openings extending from the top of said body into saidchannels for guiding block-moving means'into engagement with said blocksto move them into desired positions of adjustment.

5. A device as defined in claim 1 in which said record comprises a fiatbody having parallel channels in the bottom thereof and said adjustableparts comprise blocks slidably disposed in said channels, there beingopenings extending I from the top of said body into saidchannels forunder control of said record.

6. A device of the character described for automatically adjusting amember in accordance with a predetermined schedule, including: a recordhaving consecutive groups of adjustable parts thereon, there being meanswhereby said parts may be adjusted to positions representative ofdesired positions of said member to be adjusted;

-means for producing a, movement of said record to bring said groups ofadjustable parts individually into a plane of operation; actuating meanscontrolled by the group of said adjustable defined in claim Lin whichsaid v parts in said plane of operation for moving said 0 member to theposition represented by said adjustable parts; and means selectivelyactuable to prevent operation of said actuating means withoutinterfering with the movement of said record.

'7. A device of the character described for automatically adjusting thetuning element of a radio receiving set in accordance with apredetermined schedule, including: arecord having consecutive controlparts thereon; means for movingsaid record to bring said control partsconsecutively into a plane'of operation; and actuating means controlledby said control parts in said plane of operation for moving said tuningelement to positions in accordance with the char- I acteristics of saidcontrol parts of said record. said actuating means comprising a movablepart connected to said tuning element, engagement members controlled bysaid control parts of said record to move between inoperative andoperative positions relative to said movable part, means for moving saidmovable part in response to the movement of an engagement member intooperative position, and a plurality of stop means on the positions towhich said tuning element may be adjusted for cooperation with saidengagea. said movable part in positions corresponding to consecutivelyinto a plane of operation; and actuating means controlled by saidcontrol parts in said plane of operation for moving said tuning elementto positions in accordance with the characteristics of said controlparts of said record, said actuating means comprising a rotatable drumconnected to said tuning element, engagement members controlled by saidcontrol parts of said record to move between inoperative and operativepositions relative to said rotatable drum, means for rotating said drumin consequence of the movement of an engagement member into operativeposition, anda plurality of stop means on said drum in positionscorresponding to the positions to which said tuning element may beadjusted for cooperation with said' engagement members and stopping saiddrum in consequence of the engagement of an engagement member inoperative position with its cooperating stop means.

9. A device of the character described for automatically adjusting thetuning element of a radio receiving set in accordance with apredetermined schedule, including: a record having consecutive controlparts thereon; means for moving said record to bring said control partsconsecutively into a plane of operation; and actuating means controlledby said control parts in said plane of operation for moving said tuningelement-to positions in accordance with the characteristics of saidcontrol parts of said record, said actuating means comprising a movablepart connected to said tuning element, engagement members controlled bysaid control parts'of said record to move between operative andinoperative positions relative to said movable part, a plurality of stopmeans cooperative with said engagement members; said stop means beingdisposed in adjacent paths on said movable part traversed by saidrespective engagement members, and means on opposite sides of said stopmeans in said paths operative, upon engagement with an engagement memberin operative position, to cause movement of saidmovable part in adirection to produce engagement of the said engagement member inoperative position with its cooperating stop means, such stop meansbeing adapted to then stop said movable part.

10. A device of the character described for automatically adjusting thetuning element of a radio receiving set in accordance with apredetermined schedule, including: a record having consecutive controlparts thereon; means 'for moving said record to bring said control partsconsecutively into a plane of operation; and actuating means controlledby said control parts in said plane of operation for moving said tuningelement to positions in accordance with the characteristics of saidcontrol parts of said record, said actuating means comprising a movablepart connected to said tuning element, electrical drive means for,moving said movable part forwardly or rearwardly, engagement memberscontrolled by said control parts of said record to move betweenoperative and inoperative positions relative to said movable part, aplurality of stop means cooperative with said engagement members, saidstop means being disposed in adjacent paths on said movable parttraversed by said respective engagement members, and switch means onopposite sides of said stop means operative, upon engagement with anengagement member in operative position, to cause said electrical drivemeans to move said movable part in a direction to produce engagement ofthe engagement member in operative position, with its cooperating stopmeans, said stop means being adapted to discontinue the operation ofsaid electrical drive means in consequence of theengagement of said stopmeans with its cooperating engagement member.

11. A device of the character described for automatically adjusting thetuning element of a radio receiving set in accordance with apredetermined schedule, including: a record having consecutive controlparts thereon; means for moving said record to bring said control partsconsecutively into a plane of operation; and actuating'means controlledby said control parts in said plane of operation for moving said tuningelement to positions in accordance with the characteristics of saidcontrol parts of said record, said actuating means comprising a movablepart connected to said tuning element, electrical drive means for movingsaid movable part forwardly or rearwardly, engagement members controlledby said control parts of said record to move between operative andinoperative positions relative to said movable part, a plurality of stopmeans cooperative with said engagement members, said stop means beingdisposed in adjacent paths on said movable part traversed by saidrespective engagement members, contact plates on opposite sides of saidstop means in said paths, and contacts carried by said, engagementmembers adapted to respectively engage contact plates in said paths whensaid engagement members are moved into operative position, said contactplates and said contacts being connected to said electrical drive meansso as to energize said electrical drive means in a manner to producemovement of said movable part in a direction to carry a'cooperating stopmeans toward an engagement member which has been moved into operativeposition of control of said record.

12. A device of' the character described for automatically adjusting thetuning element of a. radio receiving set in accordance with apredetermined schedule, including: a record having consecutive controlparts thereon; means for moving said record to bring said control partsconsecutively into aplane of operation; and actuating means controlledby said control parts in said plane of operation for moving said tuningelement. to positions in accordance with the characteristics of saidcontrol parts of said record, said actuating means comprising a mov-'able part connected to said tuning element, electrical drive means formoving said movable part forwardly or rearwardly, engagement memberscontrolled by said control parts of said record to move betweenoperative and inoperative positions relative to said movable part, apluralityof stop, means formed of insulating material on said movablepart cooperative with said engagement members, said stop means beingdisposed in adjacent paths traversed by said respective engagementmembers, contact plates on opposite sides of said stop means in saidpaths, and contacts carried by said engagement members adapted torespectively engage contact plates in said paths when said engagementmembers are moved into operative position, said contact plates and saidcontacts being connected to said electrical drive means so as toenergize said electrical drive means in a manner to produce movement ofsaid movable part in a direction to carry a cooperating stop meanstoward an engagement member which has been moved into operative positionunder control of said record, the engagement of such stop means withsuch engagement member interrupting the flow of electrical energy tosaid electrical drive means.

13. A device of the character described for automatically adjusting thetuning element of a' radio receiving set in accordance with apredetermined schedule, including: a movable part adapted to beconnected with said tuning element, said movable part having primary andsecondary paths of'-movement defined thereon; a primary stop meansdisposed in each of said primary paths of movement and being spaced atmajor intervals relative to the direction of movement of said movablepart; a secondary stop means in said secondary paths of movement, saidsecondary stop means being spaced, in the direction of movement of saidmovable part, at minor intervals designating divisions of said majorintervals; a primary engagement member for each of said primary paths ofmovement adapted to be selectively moved to engage said primary paths ofmovement; a secondary engagement member for each of said secondary pathsof movement adapted to be selectively moved to engage said secondarypaths of movement; electrically actuated drive means for moving saidmovable part forwardly or rearwardiy; primary control means associatedwith said primary pathsof movement operative on engagement of a selectedprimary engagement member with its,cooperating primary path to causesaid drive means to move said movable part in a direction to bring theprimary stop means in said cooperating primary path into-engagement withsaid selected primary engagement member; and secondary control meansassociated with said secondary paths of movement, opera- "tive onengagement of a selected secondary engagement member with itscooperating secondary path to cause said drive means to move saidmovable part to bring thesaid secondary stop means in said cooperatingsecondary path into engagement with said selected secondary engagementmember, whereby said movable part will be stopped at a position offsetfrom its position wherein said primary engagement member engaged itscooperating primary stop means.

14. A device of the character described for antomatically adjusting thetuning element of a radio receiving set in accordance with apredetermined schedule, including: a movable part adapted to beconnected with said tuning element, said movable part having primary andsecondary paths of movement defined thereon; a primary stop meansdisposed in each of said primary paths of movement and being spaced atma- -jor intervals relative to the direction of movement of said movablepart; a secondary stop means in said secondary paths of movement, saidsecondary stop means being spaced, in the direction of movement of saidmovable part, at minor intervals designating divisions of said majorintervals; a primary engagement member for each of said primary paths ofmovement adapted to be selectively moved to engage said primary paths ofmovement; a secondary engagement member for each of said secondary pathsof movement adapted to be selectively moved to engage said secondarypaths of movement; electrically actuated drive means for moving saidmovable part forwardly or rearwardiy; primary switch means forcontrolling the flow of electric energy to said drive means operative onengagement of a selected primary engagement member with its cooperatingprimary path to cause said drive means to move said movable part in adirection to bring the primary stop means in said cooperating primarypath into engagement with said selected primary engagement member, suchengagement opening said stop means and stopping said drive means;secondary switch means for controlling the flow of electric energy tosaid drive means. operative on engagement of. a selected secondaryengagement member with its cooperating secondary path to cause saiddrive means to move said movable part to bring the said secondaryv stopmeans in said cooperating secondary path into engagement with saidselected secondary engagement member, whereby said secondary switchmeans is opened and said movable part is stopped at a position oflsetfrom its position wherein said primary engagement member engaged itscooperating primary stop means.

CARL H. LANGLEY.

